Oerall, 2421 of the 2839 subjects had hepatic steatosis on ultrasound and the unadjusted prealence of NAFLD was 69.5%.

• 2839名受试者中共有2421名在超声扫描下发现有肝脏脂肪变性，而且无校正NAFLD发病率为69.；5%25。